package classloader;

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("hi java!");
        String[] types = new String[]{"语文","数学","英语","物理","化学","生物"};
        System.out.println(types[4]);
        int a = -6;
        for (int i = 0; i < 32; i++) {
            int t = (a & 0x80000000>>>i)>>>(31-i);
            System.out.print(t);
        }
    }
}
